<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->

        <el-row :gutter="20">
          <el-col :span="10">
            <div>
              <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
              </el-input>
            </div>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
          </el-col>
        </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!--{{ scope.row }}-->
            <el-switch
              v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini"
                       @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini"
                       @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top">
            <el-button type="warning" icon="el-icon-setting" size="mini"
                       @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框-->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules"
               ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
    </el-dialog>
    <!-- 修改用户的对话框-->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%" @close="aditDialogClosed">
      <el-form :model="editForm" :rules="editFormRules"
               ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="SetRoleDialogVisible"
      width="50%"
      @close="setDialogClosed">
      <div>
        <p>当前的用户： {{ userInfo.username }}</p>
        <p>当前的角色： {{ userInfo.role_name }}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolelist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="SetRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的手机号'))
    }
    return {
      //  获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 2
      },
      userList: [],
      total: 0,
      //  控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //  控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {
      },
      //  修改表单的验证规则
      editFormRules:{
        email:[
          { required: true,message: '请输入邮箱', trigger:'blur'},
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile:[
          { required: true,message: '请输入手机号', trigger:'blur'},
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //  添加用户的表单数据
      addForm: {
        username:'',
        password:'',
        email:'',
        mobile:''
      },
      //  添加表单的验证规则对象
      addFormRules: {
        username:[
          { required: true,message: '请输入用户名', trigger:'blur'},
          { min:3,max:10,message:'用户名的长度在3~10个字符之前', trigger: 'blur'}
        ],
        password:[
          { required: true,message: '请输入密码', trigger:'blur'},
          { min:6,max:15,message:'用户名的长度在6~15个字符之前', trigger: 'blur'}
        ],
        email:[
          { required: true,message: '请输入邮箱', trigger:'blur'},
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile:[
          { required: true,message: '请输入手机号', trigger:'blur'},
          { validator: checkMobile, trigger: 'blur' }
        ]

      },
      //  控制分配角色对话框的显示与隐藏
      SetRoleDialogVisible: false,
      //  需要被分配角色的用户信息
      userInfo: {},
      //  所有角色的数据列表
      rolelist: [],
      //  已选中的角色ID值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users',
        { params: this.queryInfo })
      if (res.meta.status !== 200) {
      return this.$message('获取用户列表失败')
      }
      this.userList = res.data.users
      this.total = res.data.total
//      console.log(res)
    },
    //  监听 Pagesize 改变的事件
    handleSizeChange (newSize) {
//      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听 页码值 改变的事件
    handleCurrentChange (newPage) {
//      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 switch 开关状态的改变
    async userStateChanged (userinfo) {
//      console.log(userInfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    //  点击按钮，添加新用户
    addUser () {
      this.$refs.addFormRef.validate(async vaild => {
        if (!vaild) return
        //   可以发起添加用户的网络请求
        const {data: res} = await this.$http
          .post('users',this.addForm)

        if(res.meta.status !== 201){
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功')
        //  隐藏添加用户的对话框
        this.addDialogVisible = false
        //  重新获取用户列表
        this.getUserList()
      })
    },
    //  展示编辑用户的对话框
    async showEditDialog(id){
//      console.log(id)
      const {data: res} = await this.$http.get('users/' + id)

      if(res.meta.status !== 200){
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    //  监听修改用户对话框的关闭事件
    aditDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //  修改用户信息并提交
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid => {
//        console.log(valid)
        if(!valid) return
        //  发起修改用户信息的数据请求
        const {data:res} = await this.$http.put('users/' + this.editForm.id,{
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })

        if(res.meta.status !== 200){
          this.$message.error('修改用户失败！')
        }
        this.$message.success('修改用户成功')
        //  隐藏添加用户的对话框
        this.editDialogVisible = false
        //  重新获取用户列表
        this.getUserList()
      })
    },
    //  根据id删除对应的用户信息
    async removeUserById(id){
      //  弹窗询问用户是否删除数据
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?', '提示',
        {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }
      )
//        .catch(err =>{
//        return err
//      })
        // 简写
        .catch(err => err)
      //  如果用户确认了删除，则返回值为字符串 confirm
      //  如果用户取消了删除，则返回值为字符串 cancel
//      console.log(confirmResult)
      if(confirmResult !== 'confirm'){
        return this.$message.info('已取消删除')
      }

      const {data: res} = await this.$http.delete('users/' + id)
      if(res.meta.status !== 200){
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    //  展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo = userInfo

      //  在展示对话框之前，获取所有角色的列表
      const {data: res} = await this.$http.get('roles')
      if(res.meta.status !== 200){
        return this.$message.erroor('获取角色列表失败！')
      }

      this.rolelist = res.data

      this.SetRoleDialogVisible = true
    },
    //  点击按钮，分配角色
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色！')
      }

      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`,
        {rid: this.selectedRoleId})

      if (res.meta.status !== 200){
        return this.$message.error('更新角色失败！')
      }

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.SetRoleDialogVisible = false
    },
    //  监听分配角色对话框的关闭事件
    setDialogClosed(){
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>
